replace hpcloud/tail with nxadm/tail

The hpcloud is not maintained anymore.  nxadm is already part of the
dependency chain, so it won't add work for downstream packages.

While testing upcoming changes to the events-file backend, I noticed
that nxadm is shipping required fixes.

[NO NEW TESTS NEEDED]

Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>

1 files changed, 0 insertions, 79 deletions

diff --git a/vendor/gopkg.in/fsnotify.v1/README.md b/vendor/gopkg.in/fsnotify.v1/README.md
deleted file mode 100644
index 399320741..000000000
--- a/vendor/gopkg.in/fsnotify.v1/README.md
+++ /dev/null
@@ -1,79 +0,0 @@
-# File system notifications for Go
-
-[![GoDoc](https://godoc.org/github.com/fsnotify/fsnotify?status.svg)](https://godoc.org/github.com/fsnotify/fsnotify) [![Go Report Card](https://goreportcard.com/badge/github.com/fsnotify/fsnotify)](https://goreportcard.com/report/github.com/fsnotify/fsnotify)
-
-fsnotify utilizes [golang.org/x/sys](https://godoc.org/golang.org/x/sys) rather than `syscall` from the standard library. Ensure you have the latest version installed by running:
-
-```console
-go get -u golang.org/x/sys/...
-```
-
-Cross platform: Windows, Linux, BSD and macOS.
-
-|Adapter   |OS        |Status    |
-|----------|----------|----------|
-|inotify   |Linux 2.6.27 or later, Android\*|Supported [![Build Status](https://travis-ci.org/fsnotify/fsnotify.svg?branch=master)](https://travis-ci.org/fsnotify/fsnotify)|
-|kqueue    |BSD, macOS, iOS\*|Supported [![Build Status](https://travis-ci.org/fsnotify/fsnotify.svg?branch=master)](https://travis-ci.org/fsnotify/fsnotify)|
-|ReadDirectoryChangesW|Windows|Supported [![Build status](https://ci.appveyor.com/api/projects/status/ivwjubaih4r0udeh/branch/master?svg=true)](https://ci.appveyor.com/project/NathanYoungman/fsnotify/branch/master)|
-|FSEvents  |macOS         |[Planned](https://github.com/fsnotify/fsnotify/issues/11)|
-|FEN       |Solaris 11    |[In Progress](https://github.com/fsnotify/fsnotify/issues/12)|
-|fanotify  |Linux 2.6.37+ | |
-|USN Journals |Windows    |[Maybe](https://github.com/fsnotify/fsnotify/issues/53)|
-|Polling   |*All*         |[Maybe](https://github.com/fsnotify/fsnotify/issues/9)|
-
-\* Android and iOS are untested.
-
-Please see [the documentation](https://godoc.org/github.com/fsnotify/fsnotify) and consult the [FAQ](#faq) for usage information.
-
-## API stability
-
-fsnotify is a fork of [howeyc/fsnotify](https://godoc.org/github.com/howeyc/fsnotify) with a new API as of v1.0. The API is based on [this design document](http://goo.gl/MrYxyA). 
-
-All [releases](https://github.com/fsnotify/fsnotify/releases) are tagged based on [Semantic Versioning](http://semver.org/). Further API changes are [planned](https://github.com/fsnotify/fsnotify/milestones), and will be tagged with a new major revision number.
-
-Go 1.6 supports dependencies located in the `vendor/` folder. Unless you are creating a library, it is recommended that you copy fsnotify into `vendor/github.com/fsnotify/fsnotify` within your project, and likewise for `golang.org/x/sys`.
-
-## Contributing
-
-Please refer to [CONTRIBUTING][] before opening an issue or pull request.
-
-## Example
-
-See [example_test.go](https://github.com/fsnotify/fsnotify/blob/master/example_test.go).
-
-## FAQ
-
-**When a file is moved to another directory is it still being watched?**
-
-No (it shouldn't be, unless you are watching where it was moved to).
-
-**When I watch a directory, are all subdirectories watched as well?**
-
-No, you must add watches for any directory you want to watch (a recursive watcher is on the roadmap [#18][]).
-
-**Do I have to watch the Error and Event channels in a separate goroutine?**
-
-As of now, yes. Looking into making this single-thread friendly (see [howeyc #7][#7])
-
-**Why am I receiving multiple events for the same file on OS X?**
-
-Spotlight indexing on OS X can result in multiple events (see [howeyc #62][#62]). A temporary workaround is to add your folder(s) to the *Spotlight Privacy settings* until we have a native FSEvents implementation (see [#11][]).
-
-**How many files can be watched at once?**
-
-There are OS-specific limits as to how many watches can be created:
-* Linux: /proc/sys/fs/inotify/max_user_watches contains the limit, reaching this limit results in a "no space left on device" error.
-* BSD / OSX: sysctl variables "kern.maxfiles" and "kern.maxfilesperproc", reaching these limits results in a "too many open files" error.
-
-[#62]: https://github.com/howeyc/fsnotify/issues/62
-[#18]: https://github.com/fsnotify/fsnotify/issues/18
-[#11]: https://github.com/fsnotify/fsnotify/issues/11
-[#7]: https://github.com/howeyc/fsnotify/issues/7
-
-[contributing]: https://github.com/fsnotify/fsnotify/blob/master/CONTRIBUTING.md
-
-## Related Projects
-
-* [notify](https://github.com/rjeczalik/notify)
-* [fsevents](https://github.com/fsnotify/fsevents)
-